Change-speed gearing



J. M. HAND CHANGE SPEED GEAMNG W. N m T T A oct. 3o, 1923.

J. H. HAND CHANGE SPEED GEARING Filed Dec. 3o, 1920 I u lli I Mmm 4 Sheets-Sham 3 ATTORNEY.

' Oct. 30,1923.

J. M. HAND v CHANGE SPEED GEARING Filed Dec. 30, 1920 vg.. NA M T. A

om. 3o, 1923.

.JL WWII. HAND CHANGE SPEED GEARING ATTORNEY.

lflatented Unt. 30, 1923.

JESSE H. HAND, 0F DETEGT, fvl:ICHIIIGrAIil'.

CHANGEPEED GEAR/IMQ?.

Application filed..December 30, 1920. Serial No. 434,001.

To @ZZ efr/wm it may concern:

Be it knovvn that i, lessa H. HAND, a citizen of the United States, residing at Betroit., county of Wayne, `State of Michigan have invented a certain new and useful improvement in Change-Speed Gearing, and declare the following to he a full, clear, and enact description of the same, such as iviil enable others skilled in the art to which is pertains to make and use the same, reference being had to the accompanying dravvings, Which form a part of this specification.

My invention relates to constant mesh change speed gearing for automotive vehi cles. in object is to provide a change speed gearing of the constant mesh type,1 of simple construction and possessing a minimum of moving parts Which is easy of operation. More particularly an object is to provide a change speed gearing in Which the driving shaft and main shaft may he coupled directly together so as to drive the main shaft independently of all the change speed gears and farther adapted so that at any speed the only gears in motion will be those performing Work.

rllhis invention is an improvement of my invention disclosed in patent application .ftd 17,329 filed Got. 16th, 1920.

ligure l is a side elevation of my change speed gearing in `which 4certain parts are broken away.

2 is a vertical cross-section of my change speed gearing.

Fig. 3 is a crosssection taken on line 3h23, llifn la, i. l(1 ig. 4t is a cross-section taken on line Fig. 5 is a cross-section taken on line tm,

6 is a cross-section taken on line G-6,

Fig. l.

7 is a cross-section taken on line 7 3?,

Fig. l.

Fig. 8 is a cross-section taken en line 8--8,

Fig. l.

iet a` indicate the driving shaft driven from the engine; Z2 the main shaft; c the counter shaft and d the shaft on which the reverse gear is mounted. The main shaft is supported by hearings e and e2; the counter shaft by hearings e3 and et. and the driving shaft is shown as provided With a bearing e The main shaft carries a sleeve b2,

adapted toy permit independent rotation of the main shaft but also adapted to he locked to such shaft so Vas to rotate therewith.

Mounted on this sleeve is a series of gears vcomprising a lovv speed gear b5, tvvo interH mediate gears b4 and 63 and reverse gear o, These gears are so mounted as to permit the sleeve to he rotated independently of each of its carried gears. Selective means are provided for locking individual gears to such sleeve to rotate therewith.

Mounted on the counter shaft is a series of gears in constant mesh With the above These gears on the' main shaft sleeve. counter shaft gears are so mounted on the shaft as to permit the counter shaft to he independently rotated, hut selective means is provided to lock individual gears to the shaft. The. gears comprise a low speed gear c5, two intermediate gears c'1L and c3 and a reverse gear 06 which mesh with similarly numbered b gears on the main shaft.

`Carried loy the counter shaft is a large gear c2 separated from change speed gear o3 80 hy means of spacer collar 07, which gear 02 is fixed to the counter shaft s-o as to rotate therewith. Gear 02 is in constant mesh with a driving gear a2 independently rotatably mounted on the main shaft b. Gear a2 is carried 1oy suitable hearings a3 and When driven serves to rotate gear c2 and through suchA gear the counter shaft c.

The selective means employed to lock independent gears on the main shaft sleeve counter shaft and the sleeve carried by the 100 main shaft.

The shift rod j", for example, carries shift.- ing fork g to which is pivoted as at gl a shifting ring g2 which ring is grooved to receive the tongue of a key retaining ring g3 105 which retaining ring encircles a collar it which collar is keyed to the sleeve b2. CaiI- ried by this key retaining ring are locking keys 7i. disposed Within slotted key-Ways h2 in the collar so as to be moved longitudi- 11o nally therethrough into and out of engagement With gears of and 5t.

This is conventional The keys engage in provided slots y' in the gears. These slots y' may be of such size as may be desired. This fork g is also adapted to shift7 in similar manner, keys i carried by a collar 2 which collar isfixed to the counter shaft. The retaining ring in such case is indicated ase'3 and the shifting ring as 4.

Byy means of this type of construction it will Y be seen that the keys i carried by the collar on the counter shaft and the keys z carried Y carried by the collar'on the main shaftas to lpermit the gear on such shaft to be rotatably engaged before the gear on the other shaft is engaged.l Vere this not the case there might be a failure to pick up the gears. With Vsuch an arrangement this gear on the counter shaft would be picked up first, and

i would rotate its other vgear in pair, carried by the sleeve on the `main shaft, until such gear is in turn picked up by its locking keys.

Through the actuation of shifting fork g either of the, intermediate pairs of gears may be engaged for rotation.

In connection Awith shift rod f3 I provide a fork c carried thereby. This construction is similar to the construction just described. There is a shifting ring 7a2 which receives a key retaining ring 7c3 which key retaining ring carries keys m which keys are disposed for slidable longitudinal movement within provided key ways m2 formed in a collar m3 .fixed to the sleeve'l. These keys are adapted to be received in the provided openings j in the low gear b5 or in the openingsj in the reverse gear b so as to lock these gears independently to the sleeve b2. Adapted for simultaneous movement and in the same direction are keys a disposed in provided key-ways in a collar n2 which collar is secured to a counter. shaft. These keys are held by a retaining ring as which ring is engaged by a shifting ring not shown in the drawing but of similar' construction to the one previously described and shown in Fig. 4.

Owing to the small diameter of the reverse gear c6 there is attached to the side of such gear a key plate 08 slotted to provideY openings for the keys n so as to lock the gear c6 to the collar n2 in order that such gears will rotate with the counter shaft. This gear e6 is in constant mesh with gear d2 carried on shaft d which gear is in turn constantly engaged with gear b on the sleeve b2.

To pick up the countershlaft and through such shaft to pick up the reverse gear or any of the desired change speed `ears I provide means for engaging the independently rotatable driving gear a2 which is mounted on the main shaft with the driving shaft (r. This means is fully described in my patent application #417,329, filed Oct. 16th, 1920, above referred to, and comprises a hub o provided with slotted kcy'ways adapted to receive keys 02 which keys are bound together as a unit by means of a lmy-retaining ring 03. Shifting fork 72 is carried by shift rod f2 which fork carries a shifting ring y# which in turn engages a key retaining plate p3 as shown in Fig. 8 to which plate the keys 02 are fastened so as to be shifted thereby.

These keys 02 serve to lock the hub o to the driving gear a2 in order that such hub and driving gear may rotate as one piece. Due to the simili diameter ol' the driving gear this locking is by way of a key plate e4 fastened to the side ot the, gear which key plate is provided with slotted key openings 1,5 as shown in F 5.

The hub 0 is cored out to receive the end of the main shaft. Secured to the main shaft so as to rotate therewith and interior the hub 0 is a collar Q which is slotted to receive keys g2. These keys are retained in position in the provided key-ways by means of a key retaining ring ([3 which serves to move the keys as a unit and which ring is in turn engaged by the keys 02 by means ot the tongue and groove construction shown in Fig. 2 of drawing.

These keys g2 are adapted to engage in slotted openings g4 in the interior of the hub so as to lock the hub carried b v the driving shaft and the collar g fixed to the main shaft. together so that the driving shaft and main shaft will rotate as one member, independ ently of all the change speed gears.

It will be seen that this hub mechanism permits of three positions for the clutch engagement; a direct drive in which the keys Q2 are engaged in the openings q in the hub which locks the driving shaft and the main shaft together; the neutral position.

shown in Fig. 2, in which the keys o are 1 t disengaged from the plate (t and the keys g2 are disengaged from the hub o; and any drive through the counter shaft in which the keys 02 are engaged in the openings n in the plate a* so as to drive the counter shaft as previously described.

It is apparent that when the driving is through the counter shaft. and any one of the selected gears on the sleeve, to drive the main shaft it will be necessary to lock the sleeve to such shaft. Means are. therefore, provided to lock such sleeve and shaft to- ,ether coincident with the engaging of the eys o2 in the plate af.

Shifting rod f2 carries at the end of the Slt) illu

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infetti change speed nesting opposite tlie engine end shitting toil: ,5- pivoted to s sleeve e mounted on sliitt i'od ,t2 which sleeve is held yieldinigly egsinst e. lined sliotildeiM on the rod hy niesns oit s spninp; e9, 'lfhis shittiiiggil teilt is pivoted inteiniediste .its ends te the tisnsniissioii easing', es si lig. 3, so thst the loili: insy he toelted haelt end toith. its loivei1 end this shitting 'liotlt esiiies e, shitting iiny7 t which tine; is engegged vvitli s. ltey ietsining i'inp; t2 which iieteiningi; ting' eneii'eles keys t3 esiiied hy s eollsi vihieli eollsi" lined to the insin .hott Dee to the method oit pivoting,` the shi -ng totlt the direction oi" inoveinent et the keys t3 v/ill he the i'eveise et the movement et the shilt tod. These keys 253 sie adapted to engelse in slot-- ted openings t5 in the thingie on the end slt the sleeve 62. `Shi:tting toilts je ind e being both inoiinted on the seine shi'l'it i'od eine inoved simultaneously, theretoie, 'when the keys o2 sie thrown into engagement with the eeei s2 the lteys t3 site tlitoivn into en gegeinent with the sleeve 252. Disenge-ge nient oi tlieie tivo sets et lieys is likewise coordinated, The shitting teilt e is yieldingly mounted on the shitt ifod f2, shovvii, so that should the lteys t3 teil to the sleeve o2 es the keys o2 sie tliioivn into positien to eneviie the geen e2 the keys o2 will he permitted to piek np the geen Whieli will serve to i'otste the sleeve, etten the desii'ed ehenge speed geen lies been joie-leed up, siil'lieieiitly to latine; the ltev-ivdvs t in the end el the sleeve into position se that the lteys t3 may engeiie therein.

.ln operation this elisngi'e sneed getti" perinits ot e diieet diive tioin the driving; slisilt thioiigh the insiii shaft with ell the tesis stending idle. ln driving tliitoiigijh siiy ol the change sneed oi1v thtoiigih the veise, ell the gesis one idle except the ioei"l"oiniin,rl lshoii'; :for ensnigle, it it is desited to ,go into loiv :liioin the iieiitiel posi-- tion shift i'od f2 setiieted to loeli: the geen ft2 to the liiili eei'iied hy the dtiviniif shsi'it :ind eoiiisident ivithl suoli inovenie the sleeve 62 is looked to the iiisin shslit tliioiisli the lfeys t3. Shift iod ,iE is iioiv setimted to lock the [teens 3 sind e" to the sleeve lf2 end the eoiiiitei shalt i'espeetively. llllliile the testing is so oiievsted the only nioviiin genis i ill he el?, e2, :ind ha. .Il siinilev Condition would he time in diivi. A tlii'oiiii'h :my oil the olhei1 egeziis on the eoiinteif sheflit.

Clsiins:

l. lii ehitntge speed geen, e nisiii shalt, s. sleeve estied by siieli insin shsi'ft in such e, niennei' that the slisft iniiy loe iotfited independently tlieieot, ineens tot loeliino: suele sleeve to the shfiift to totete thenetvitln s. series oit ,eeets loosely mounted on siieli sleeve het adopted to he loelized individnelly thereto to votate theieivitli, s eoiintei1 sliiillt, s series ot geste loosely esitied on seid coiiiitei shslt lout iidepted to he loelted iiidii/ideally thereto to iotete theiievvith, e, driving shaft, ineens tot coupling the eoiintei' shell; ii'p ivitli the delving shslt so es to he rotated thereby, ineens tot looking tiny loose ges-i on the eoiinteiI shelt theteto so es to iot te "with siieh shslt and coincident tliei'etvitli lookingv its cooperating on the mein she-,att sleeve to such sleeve to iotete therewith.

ln s elifinge speed geen, s ins-in shalt, ey sleeve eeiiied by seid insin shalt in suoli insnner thzit the slislt iney he iotzited independently thereof, ineens tot looking; seid sleeve to the shfit to iotste theiseivitli, e series oi @este loosely inoiinted on seid sleeve hut edspted to he loelied individually thei'eto to iotete therewith, e counter shstt, e. sei-ies ot geste` loosely ceri-led on seid eouiitei shet but edspted to he loelted individually theieto to totste therewith, s driving sheitt, ineens for coupling; the eoiinshe-ift up with the driving shell; so es to he i'oteted thiriiehy, ineenm toi" locking any loose goei" on the eoiinteif' shaft tlieieto so to iotete with siieh Shel-tend eoineident therewith looking its edopeis ing; geen on the iieoin shslft sleeve to the sleeve to iotete theieivitli, niesiis :tot coupling the insiii shsit directly ivith the driving shell-t so es to :vetste CJs one ioieee independently ol ell the gieziis.

ll. it eliengi'espeed geeilng, diiving slisiit, e iniiin shot, s sleeve mounted on the insin shalt in siieh e :mennen es to peinoit .votation ol the nisin shalt independently el' the sleeve, iii-eens toi` looking the sleeve to the 'insiii slie'qt so es to iotste therewith, e seiies ot elistiifie speed geste mounted on the sleeve in stieli s nisiinei es to peiniit i'otstion et the sleeve independently ot any gest, e eoiintei shaft, e series of change sneed tesis inoiinted on the eoiintei1 shalt in siieli s ineniiei to neiinit the Coiin'tei shiitt to he iotsted independently tlieifeoit, ineens toi1 coupling up the eoiintei shsitt with the delving,1 slistt so tie eoiintei' shalt ivill he driven thereby sind coincident there with coupling the sleeve ivitli the insin slisclt, ineens loi" eoiiiilini): ei v elizinif "Deed geen on the counter sli 't the eto to ,tete thonevvitli ind et siilisnentislly the seine time coupling; the eo-opemtin,ela Qjeei in neil" on the inein sherlt sleeve ivitli siieh sleeve to iotste tlieieivitlninesns foi1 coiiplinggthe iniiin slisitt diieetly ivitli the diivingif shalt when the eoiintei shfiil't is disengaged ilioiii its diivinni iolstion with such drivingF shalt.

ll. ln s eh enge sneed geen, :i diiviiteshaft. e mein slielt, s sleeve niounted on the inein shsit in siieli :i nisnnei :is to neiinit ot independent notation et the shalt, e seiies of inoiinted on the sleeve se es to petiiiit the independent iotetion ot the sleeve, suoli geei's sdspted to he individually loolited lllll lllllll to suoliv sleeve so as torotate therewith, a counter shaft, al series of gears mounted on the vcounter shaft in such a manner as to permain shaft to the driving shaft to rotate therewith, means for coupling the sleeve on the main shaft with such shaft to rotate therewith, means for coupling the main shaft directly with the driving shaft to rotate as one member indpendently ot all the gears, means for coupling any of the gears mounted on the sleeve with such sleeve to rotate therewithand by the same movement coupling the eo-operating gear in the train on the counter shaft to sueh shaft.

5. In a change-speed gear, a driving shaft, a main shaft, a sleeve mounted on the .main shaft in such a manner as to permit of independent rotation of the shaft, a series of gears mounted on the sleeve so as to 1permit of independent rotation of the sleeve, such `:gears adapted to be individually locxed to such sleeve so as to rotate therewith, a counter shaft, a series ot' gears mounted on the counter shaft in such a manner as to permit of independent rotation of the shaft, such gears adapted to be locked individually to the counter shaft so as to rotate there- Ywith, an independently rotatable driving` gear carried by the main shaft, a gear lived to the counter shaft to rotate therewith, which gear on the counter shaft is in constant mesh with the driving gear on the main shaft, means for locking the independently rotatable driving;` gear onv the main shaft to the driving shaft to rotate therewith, means for coupling the sleeve on the main shaft with such shaft to rotate therewith coineidentwith the coupling` of the driving gear mounted. on the mainV shaft in its driving relation with the driving` shaft, means'for coupling the main shaft directly with the driving shaft to rotate as one member independently of all the gears.l means for coupling any gear on the main shaft sleeve tol such sleeve to rotate therewith and also coupling by the'same movement the co-operating gear in the train carried on the counter shaft to such counter shaft to rotate therewith.

6. In a. change-speed gearing, a driving i shaft, a main shaft, a sleeve mounted on said main shaft to permit independent rotation of the shaft, means for locking said main shaft to said driving shaft to rotate as one piece therewith independently of the sleeve` means for locking said sleeve to said shaft to rotatetherewith, a plurality of ehanef'espeed gears mounted on said .sleeve to per-- mit rotation of the sleeve independentliv of' any gear and means for loci-tino any individual gear on the sleeve thereto to rotate therewith` and means f .r driving said main shaft from said driving sh: ft through the sleeve and any one of the gears thereon.

7. In a change-speed lgearing. a driving;` shaft, a main shaft, sleeve mounted ou iid main shaft permitting iinlepndent rotation of the shaft, change-speed gears mounted on said sleeve to permit rotation of the sleeve independent of any gear thereon, means for e'tuiplinrq' said driving shaft to said main shaft to drive therethrough independentlyT of the sleeve means for couiilinp any `gear on the sleeve thereto to rotate therewith and at substantially tln,l same yiine coupling the driving shaft to the main shaft tl rough l he gear coupled to the .sleeve to drive said main shaft at varying rates of speed.

8. In a change-speed `gearing, in combination, a drive shaft, a main shaft. a. counshaft` a sleeve mounted on said main shaft to permit independent rotation of the shaft, a series of change-sneed gears mounted on said sleeve to permit rotation of the sleeve independently of any gear. a corresponding series of change-speed gears mounted on the counter shaft eonstantly in mesh with the `gears on the sleeves, which gears are so mounted on the counter shaft as to permit rotation of the Cormier shaft independentlyT of an;7 AQ'ear thereof. means for coupling said driving shaft with said main shaft to rotate inf'lependently of the sleeve, means for coupling said driving .shaft with said counter shaft to drive the same and at substantially the same time Coupling:y the sleeve with said main shaft to rotate therewith, and means for coupling any gear on the counter shaf thereto to rotate therewith and with the same movement hut sli glitly thereafter coupling the corres])endingr gear in pair on the sleeve to said sleeve to rotate therewith to drive the main shaft from the driving shaft through the counter shaft at varying rates of speed.

In testimony whereof I sign this specification.

IESSE H. HAND.

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